We try and make ordering a versatile as possible. In addition to the current issue plus 3 future, you can also buy individiual back issues or various combinations.

You can't buy an individual future issue though. At least not until it becomes available, it which point it's no longer a future issue, it's a current issue. Then, if you wait long enough it becomes a past issue.

Just explore the various catagoies on the left side pane of the main subscription page.